VisibleWhen core expression not working for Menuhttps://www.eclipse.org/forums/index.php/mv/msg/441007/988845/#msg_988845
I am trying to work with visibleWhen expressions like I did in Eclipse 3.x

I have a menu that should become visible when a special state has changed.

I know it can be done by setting the visible flag on MMenu, but for menu items, the core expressions are supported and working fine. So the visible state can be changed in a declarative way via core expressions, while it doesn't work for menus.